<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>index</title>
    <link href="index.css" rel="stylesheet" type="text/css"/>
</head>
<body>
<div id='root'>
    <p class="nihao">nihao</p>
</div>
<div id="second">
    <p>hello</p>
</div>
</body>
</html>